The bulk of the emissions is done by passenger cars. I am not too sure about putting low energy-dense propulsion (batteries) in heavyweight vehicles. An electric bus carries the extra weight in batteries as if it is packing a bunch of cars on top of each other. Plus think of the extra wear & tear this all brings for the road. I’d rather see the latest clean diesel technology German car makers are using in passenger cars being deployed in trucks and buses. Better still, use hydrogen power. If LA is sensible about the whole transit issue, it should give what’s depicted below a thought. Public Transport works well when a lot of passengers need transporting. In principle, you should deploy bulky transport modes around the clock, to offset the higher costs (buy or lease, maintenance, operating). But outside rush hours, fewer people need to be carried, making deployment too costly to cover running expenses, and less eco-friendly per passenger. When passenger ‘payload’ drops, smaller vehicles are simply more efficient. Ride-hail providers can be of help in that huge void between PT and passenger car, even micro-mobility.